Improvement in governors fqr marine engines



E. STEELE.

GOVERNORS FOR MARINE-ENGINES.

Patented July 10 1877.

N- PETERS, PHOTO LITMOGRAPHER, WASHINGTON. D. C.

GEORGE STEELE, 0F NEW YORK, N. Y.

IMPROVEMENT IN1 GOVERNQRS FQR MARINE ENGINES- Specication forming partof Letters lateut No. 193,050, dated July 10, 1877 application ledNovember -28, 1876. v

To all whom it may concern Be it known that I, GEORGE STEELE, of thecity, county, and State of New York, have invented an Improvement inGovernors for Marine Steam-Engines and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawing, which forms part of thisspecification.

My invention consists in the combination, with a cylinder and a pistoncontained therein, and actuated by the pressure of water, in which theship floats on the under side, and by atmosphericpressure on the upperside, of mechanism, towit: a valve or valves conneeted with, andoperated by, said piston, which valves, through suitable pipes, admitsteam, water, or air to, and permit steam, water, or air to exhaustfrom, one end of a cylinder, the other end of which is open to theatmosphere, and a piston in which acts, through suitable mechanismconnected with the throttle-valve in the induction-pipe ot' the engine,to'close the said throttle-valve, the said throttle-valve when not soclosed being opened by a weighted lever, as more fully hereinafterdescribed.

Figure 1 in the accompanying drawing is a top view ofthe apparatus. Fig.2 is a section through the cylinder, in which works the valvecontrollingpiston, and a partial side elevation of other parts. Fig.4 3 is ahorizontal longitudinal section through the valve-boxes of' theapparatus. Fig. 4 is a, side elevation ofthe cylinder containing thethrottle-valvecontrolling pistou, a sectional view ofthe cyliudercontaining the piston which controls the eduction and induction valves,a vertical and longitudinal section of one of the valve' boxes, andaside elevation of other parts.

i A, Figs. l, 2, and 4, represents the cylinder containing thethrottle-valve-controlling piston B, Fig. 2, to which is attached thepistonrod, G, Fig. 2, having at its upper end a piu working in the slotd, Fig. 2, of the weighted throttle-valve lever E, a hole, j', beingformed in the cap of the cylinder A to admit air freely to the upperpart of said'cylinder.

When steam, Water, or air under pressure is admitted to the lower partof the cylinder A, the pistou B rises and acts through the piston-rod Cvand the lever E to close the throttlc-valve G, Figs. 1 and 2; and whenthe said steam, water, or air escapes from said cylinder, the saidpiston, piston-rod, and lever fall, the lever- E being actuated by theweight 1l at the end oi' said lever, and the throttle-valve G is opened.The induction and eduction of steam, water, or air to and from thecylinder A are controlled by the valves Il', Figs. 3 and 4, which seatin opposite directions in the valve-boxes K K', Figs. 1, 3, and 4. Twopuppet-valves, of the kind known as anglevalves, are preferred, butother kinds of valves may be used, so arranged that when one is openedthe other shall be closed tightly; or a single valve of any kind may beused, said valve being constructed to cover two ports in such mannerthat when one port is Opened theothershallbesimultaneouslyclosed.` Thevalve-stems L L', Figs. 1, 3, and 4, are attached to a cross-head, M.The said crosshead is connected hy a link, N, tothe upper end of therock-bar O, Figs. 1 and 4, which has its liulcrum at p, Fig. 4. At thelower end of the rock-bar O is a crank-Wrist, R, Fig. 4, with which theadjustable hooks s s, .Fig-. 4, attached to the connecting-rod T, Figs.l and 4, engage, when operated ,as hereinafter set forth. The saidconnecting -rod partly rests and slides on said crank-wrist when themotion ot' the said connecting-rod is insuicient to engage one or otherof the said hooks with the said crank-wrist. The other end of theconnecting-rod T is pivoted to one arm of a bell-crank lever, U, Figs. land 4, said bell-crank lever having its fulcrum at V. The other arm ofthe bell-crank lever-has a slot, fw, Fig. 4, i'ormed therein, iuwhichworks a pin, Figs. 1 and 4,ysaid pin projecting from the upper end ofthe piston-rod Y, Fig. 4, said piston-rod being attached to the pistonZ, working in the cylinder A', Figs. l and 4. The bottom of the cylinderA' is open. The top of said cylinder is provided with a cap, havingformed therein an opening, b, Figs. 1 and 4, for the free admission ofair.

'The apparatus is so placed on board ship that the lower part of thecylinder A' passes down through the hull of the vessel, near the stern,and so that when in a smooth sea the vessel is on an even keel thepiston rests upon the water in such manner that neither onev of' thehooks s s', Fig. 4, engages the crank-Wrist It but when the stern of thevessel rises sufficiently to throw the propeller partly out of theWater, the pressure of the external atmosphere passing in through theopening b in the cap of the cylinder A' causes the' piston Z to descendin the cylinder A', in which said piston yis tightly fitted or packed byleather packing, or otherwise to prevent leakage, and consequently,through the mechanism of the piston-rod Y, bell-crank lever U,connecting-rod T, hook s', rock-bar O, link N, cross-head M, andvalve-stems L L', to open the valve I' and close the valve I. When thestern of the vessel sinks suciently the abovedescribed action isreversed, the valve I' is closed. and the valve I is opened.

' Steam, water, or air under pressure is admitted to the valve-box K'through the pipe C', said pipe being provided with a valve, D', Figs. 1and 4, and when the valve I is open and the valve I is closed saidsteam, water, or air passes through the pipe E into the cylinder A underthe piston B, raising said piston, which, through the piston rod C andWeighted lever E, closes the throttle-valve G that supplies steam to theengines. This action occurs every time the stern of the vessel risesvenough to raise the propeller from the water; or when in a racing seathe water recedes from the stern, leaving the propeller exposed, (inwhich latter case a pendulum governor would not act,) the valves I andI' being actuated as hereinbefore described.

When the vessel sinks, or the sea rises to an even keel, the action isreversed, the valve I' is closed, and the valve I is opened. The steam',Water, or air then exhausts from the cylinder A, back through the pipeE', and through the extension F', Figs. 1 and 4.-, of

the pipe E' to and through the valve I, and thence out of theexhaust-port h in the bottom of the valve-box K. The weighted lever .Ethen controls the throttle-valve G to open it and admit steam to theengines.

The action of the apparatus as herein described applies to the fullclosing oropening of the throttle-valve; but it is obvious from theconstruction that any degree of partial opening or closing, as Well asthe full action of the throttle-valve, may be obtained by properadjustment of the hooks s s', and the proper placing of the cylinder A'in the stern of the hull.

When steam .is used to actuate the piston B quicker action of theapparatus may be secured by connecting the exhaust-port h in thevalve-box K, Fig. et, with a condenser to accelerate the exhaust.

The piston Z in the cylinder A' may, moreover, be made to act as bothafloat and piston by making it hollow or of light material.

I claim- The combination, with the throttle or regulating valve G, theWater and air cylinder A', and the piston Z acted upon directly by wateron its under surface, and by the atmosphere on its upper surface, of asteam, water, or air cylinder, A, containing a piston connected withsaid throttle-valve, and an induction or eduction valve or valvesactuated by the piston Z and its connections vto ladmit steam, water, orair to, and exhaust the same from, the said cylinder A, the Wholeoperating substantially as described, and for the purpose herein setforth.

GEO. STEELE.

Witnesses.

BENJAMIN W. HOFFMAN, FRED. HAYNEs.

